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Tiny Ocean Wonder: The Sea Angel
Meet the clione, or 'sea angel' — a tiny, see-through ocean drifter with wing-like flaps. It looks delicate, but it's really a type of sea slug and a fierce little predator.
How it works
- Press play to start the video.
- Videos 5 minutes or longer pause once or twice for a quick check. Get it right and you're on your way. If not, you'll see a friendly explanation and the video simply keeps going. Short videos skip the checks.
- At the end there's a 2-question test. Score 60% or more to complete the lesson, and 80% or more to master it. You can always watch again and try for a higher score.